2020年职称英语考试《卫生类》考试共65题，分为单选题和多选题和判断题和计算题和简答题和不定项。小编每天为您准备了5道每日一练题目（附答案解析），一步一步陪你备考，每一次练习的成功，都会淋漓尽致的反映在分数上。一起加油前行。

1、Smallpox virusIt\'s now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achievement of 1980, when smallpox was eradicated in the wild, by destroying the killer virus in the last two labs that are supposed to have it—one in the US and one in Russia. If smallpox had truly gone from the planet, what point was there in keeping these reserves?In reality, of course, it was naive to ____ that everyone would let go of such a potential weapon. Undoubtedly several nations still have a few vials. And the last “official” stocks of live virus bred mistrust of the US and Russia, for no obvious gain.Now American researchers have found an animal model of the human disease, opening the way for tests on new treatments and vaccines. So one again there\'s a good reason to keep the virus—just in case the disease puts in a reappearance.How do we deal with the mistrust of the US and Russia? Simple. Keep the virus under international auspices in a well-guarded UN laboratory that\'s open to all countries. The US will object, of course, just as it rejects a multilateral approach to just about everything. But it doesn\'t mean the idea is wrong. If the virus is useful, then let\'s make it the servant of all humanity—not just a part of it.【单选题】

A.know

B.imagine

C.realize

D.be?aware

正确答案:B

答案解析:此处应填人一个非事实性动词。imagine是非事实性动词。know，realize和be?aware都是事实性动词，所以不合适。属于非事实性动词还有believe，think等。故B为正确答案。

2、BaseballThere are people in Italy who can\'t stand soccer. Not all Canadians love hockey. A similar situation exists in America, where there are those individuals you may be one of them who yawn or even frown when somebody mentions baseball. Baseball to them means boring hours watching grown men in funny tight outfits standing around in a field staring away while very little of anything happens. They tell you it\'s a game better suited to the 19th century, slow, quiet and gentlemanly. These are the same people you may be one of them who love football because there\'s the sport that glorifies "the hit".By contrast, baseball seems abstract, cool, silent and still. On TV the game is fractured into a dozen perspectives, replays and close ups. The geometry of the game, however, is essential to understanding it. You will contemplate the game from one point as a painter does his subject; you may, of course, project yourself into the game. It is in this projection that the game affords so much space and time for involvement. The TV won\'t do it for you.Take, for example, the third baseman. You sit behind the third base dugout and you watch him watching home plate. His legs are apart, knees flexed. His arms hang loose. He does a lot of this. The skeptic still cannot think of any other sports so still, so passive. But watch what happens every time the pitcher throws: the third baseman goes up on his toes, flexes his arms or bring the glove to a point in front of him, takes a step right or left, backward or forward, perhaps he glances across the field to check his first baseman\'s position. Suppose the pitch is a ball. "Nothing happened," you say. "I could have had my eyes closed".The skeptic and the innocent must play the game. And this involvement in the stands is no more intellectual than listening to music is. Watch the third baseman. Smooth the dirt in front of you with one foot; smooth the pocket in your glove; watch the eyes of the batter, the speed of the bat, the sound of horsehide on wood if football is a symphony of movement and theatre, baseball is chamber music, a spacious interlocking of notes, chores and responses.We can safely conclude that the author ____.【单选题】

A.likes football

B.hates football

C.hates baseball

D.likes baseball

正确答案:D

答案解析:在本文中，作者主要探讨了垒球的特征及欣赏，作者着重指出的是： 只有根据垒球的特征来欣赏它，才能体会到它的魅力。在他看来，观察到垒球比赛中运动员的各种动作、垒球位之间的关系等是欣赏它的关键（第三段第二句）。只有从整体来把握它，才能看到每一个小的动作、每一个眼神乃至于“静止”的意义，也只有这样，才能全身心地投入比赛中，欣赏到它的魅力。可见，作者对垒球有很深的理解而且非常喜爱垒球。

3、Shy felt frustrated when nobody understood what she was trying to say. 【单选题】

A.boring

B.upset

C.angry

D.dull

正确答案:B

答案解析:frustrated和upset意思相同，表示“失心烦意乱的、闷闷不乐的”；boring：令人厌烦的；angry：生气的、恼怒的；dull：没有意思的、乏味的。

4、The?two?banks?have?announced?plans?to?merge?next?year.【单选题】

A.combine

B.sell

C.close

D.break

正确答案:A

答案解析:题干大意：两家银行已宣布了明年合并的计划。merge意为“联合”，如：Rover?is?to?merge?with?the?BMW.（罗孚要和宝马公司合并。）combine意为“合并”，最符合题意，如：combine?theories?with?practical?experiences（将实践经验和理论相结合）。sell意为“出售”，如：How?can?you?sell?out?an?old?car?（你怎样能将这辆老车卖出去？）close意为“关闭”，如：Close?the?door?please.（请关门。）break意为“打碎”，如：break?a?vase（打破花瓶）。

5、Smart Window Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch. "It took us a long time to figure out what a window really is," says Claes Granqvist. He\'s a professor of solid-state physics at Uppsala University in Sweden. "It\'s contact with the outside world. You have to have visual contact with the surrounding world to feel well. " So, windows and natural light are important for improving the way people feel when they\'re stuck indoors. Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it\'s hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world. Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color. Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage is decreased, the window darkens until it\'s completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark. One important feature that makes a smart window so smart is that it has a sort of "memory. " All it takes is a small jolt of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take anywhere from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different. Which of the following statements does not indicate the importance of windows as described in the first two paragraphs? 【单选题】

A. Windows can change from clear to dark to save energy.

B.Windows help to save energy by letting light in.

C.Windows help to save energy by providing heat.

D.Windows enable people to have contact with the outside world.

正确答案:D

答案解析:借助文章中的用词特点或文章开头的语句进一步了解这篇文章的主题：文章讲介绍一种智能窗户。